Allen Bradley 1746-IA16 SLC I/O Digital Modules

The Allen-Bradley 1746-IA16 is an AC input module compatible for use as component of SLC 500 controller platform. This input module has Sixteen (16) channels that accepts AC signal voltage range of 85-132 VAC.

Input modules are necessary components of any Programmable Logic Controller (PLC) as it provides real-time interface to discrete devices in the process. It represents the actual state of signaling devices for reference of the controller for processing the logic. Most PLC systems perform Input scan as the primary phase for executing a user program. If input signals are not detected, the controller will have no reference for executing the program.

This AC input module has Twenty (20) terminals. All terminals are used with terminals 18 and 19 serving as internally connected commons. The terminal block of this module is removable allowing replacement of the input module while eliminating the need to reconnect the input terminations.

Technical specifications for 1746-IA16

ManufacturerRockwell Automation

BrandAllen-Bradley

Part Number/Catalog No.1746-IA16

SeriesSLC 500

Module TypeDigital AC Input Module

Voltage Range85-132 Volts AC

Backplane Current (5 Volts DC)85 milliamps

Inputs16

Signal delay35 or 45 milliseconds

Off State Current2 milliamps

Backplane Current(5 Volts DC) 85 milliamps

Slots1

Signal delay, ON35 ms

I/O Connection1746-HT and 1746-HCA

Signal Delay, OFF45 milliseconds

Step Response100 milliseconds in, 2.5 milliseconds out